👤

Calculați:
a.( 1/2 + 3/4 + 5/6)+( 1/2 + 1/4 + 1/6 )
b.( 3/2 + 7/5 + 5/9 )+( 3/2 + 8/5 + 22/9 )
AM NEVOIE URGENT!DAU COROANĂ ​